If Satoshi Nakamoto sells his holdings of Bitcoin, which are currently estimated to be between 750,000 and 1,100,000 Bitcoins, several significant effects are likely to occur in the cryptocurrency market:

* A significant drop in prices: Selling this massive amount of Bitcoin would lead to a substantial increase in supply, which could cause a sharp and sudden decline in the price of Bitcoin. This may lead to panic among other investors, prompting them to sell as well, exacerbating the decline.

* Extreme market volatility: The market would experience enormous and unpredictable fluctuations. Other cryptocurrencies may also be significantly affected, as Bitcoin often leads the trend of the entire market.

* Impact on investor confidence: Satoshi's sale of his coins may be seen as a sign of loss of confidence in the future of Bitcoin by its very creator. This could lead to a widespread erosion of investor confidence.